606 



BELL SYSTEM TECHNICAL JOURNAL 



third assumption is that, while the sample has a finite average num- 

 ber of occurrences, it consists of an infinite number of independent, 

 uniform trials, so that the possible number of occurrences in a sample 

 is infinite, and the probability that the event occur in a single trial 



+ 



+ 

 + 





o 

 J£ 22 



■£•- 



3 c 



0-- 





•r. o 



u o 



0) c. 

 > <u 





C o 



d JO S3m»A 



